[edu] 순열, 조합

[순열]

중복 없음

import itertools

nums_a = [1, 2, 3]
permu_a = itertools.permutations(nums_a, 2)

중복

import itertools

nums_a = [1, 2, 3]
permu = itertools.product(nums_a, repeat=2)

[조합]

중복 없음

import itertools

nums_a = [1, 2, 3]
permu = itertools.combinations(nums_a, repeat=2)

중복

import itertools

nums_a = [1, 2, 3]
permu = itertools.combinations_with_replacement(nums_a, repeat=2)